work (your) arse/backside off

British & Australian, very informal, American, very informal

to work very hard.

My father worked his backside off to pay for our education.

• not do any favors
• not do any favours
• not do anything by halves
• not done
• not do someone any favors
• not do someone any favours
• not do things by halves
• not do yourself any favors
• not dream of
• not dream of doing something
• not dwell on
• not dwell on something
• not for love nor money
• not for love or money
• not for nothing
• not for quids
• not for the life of me
• not give a damn
• not give a damn about
• not give a damn about someone
• not give a damn about something
• not give a fig
• not give a hoot
• not give a monkey's
• not give an inch